package com.itheima.controller;

import com.itheima.pojo.Result;
import com.itheima.pojo.User;
import com.itheima.service.UserService;
import com.itheima.utils.JwtUtil;
import com.itheima.utils.Md5Util;
import com.itheima.utils.ThreadLocalUtil;
import jakarta.validation.constraints.Pattern;
import org.hibernate.validator.constraints.URL;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.util.StringUtils;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Validated
@CrossOrigin
public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    @PostMapping("/register")

    public Result register(@Pattern(regexp = "^\\S{5,16}$") String username, @Pattern(regexp = "^\\S{5,16}$") String password) {
        User user = userService.getUserById(username);
        if (user == null) {
            userService.register(username, password);
            return Result.success();
        }

        return Result.error("用户名已重复");

    }

    @PostMapping("/register")

    public Result logout(@Pattern(regexp = "^\\S{5,16}$") String username, @Pattern(regexp = "^\\S{5,16}$") String password) {
        User user = userService.getUserById(username);
        if (user == null) {
            userService.register(username, password);
            return Result.success();
        }

        return Result.error("用户名已重复");

    }

    @PostMapping("/login")
    public Result<String> login(@Pattern(regexp = "^\\S{5,16}$") String username, @Pattern(regexp = "^\\S{5,16}$") String password) {
        User userById = userService.getUserById(username);
        if (userById == null) {
            return Result.error("用户名错误");
        }
        if (Md5Util.getMD5String(password).equals(userById.getPassword())) {
            Map<String, Object> claim = new HashMap<>();
            claim.put("id", userById.getId());
            claim.put("username", userById.getUsername());
            String token = JwtUtil.genToken(claim);
            ValueOperations<String, String> operations = stringRedisTemplate.opsForValue();
            operations.set(token, token, 1, TimeUnit.HOURS);
            return Result.success(token);
        }
        return Result.error("密码错误");
    }

    @GetMapping("/userInfo")
    public Result<User> userInfo() {
        Map<String, Object> userMap = ThreadLocalUtil.get();
        String username = (String) userMap.get("username");
        User user = userService.getUserById(username);
        return Result.success(user);
    }

    //    public Result<User> userInfo(@RequestHeader(name = "Authorization")String token){
//        Map<String, Object> userMap = JwtUtil.parseToken(token);
//        String username = (String) userMap.get("username");
//        User user = userService.getUserById(username);
//        return Result.success(user);
//    }
    @PutMapping("/update")
    public Result update(@RequestBody @Validated User user) {
        userService.update(user);
        return Result.success();
    }

    @PatchMapping("/updateAvatar")
    public Result updateAvatar(@RequestParam @URL String avatarUrl) {
        userService.updateAvatar(avatarUrl);
        return Result.success();
    }

    @PatchMapping("/updatePwd")
    public Result updatePwd(@RequestBody Map<String, String> params, @RequestHeader("Authorization") String token) {
        String oldPwd = params.get("old_pwd");
        String newPwd = params.get("new_pwd");
        String rePwd = params.get("re_pwd");
        if (!StringUtils.hasLength(oldPwd) || !StringUtils.hasLength(newPwd) || !StringUtils.hasLength(rePwd)) {
            return Result.error("没有传递必要的参数");
        }
        Map<String, Object> userMap = ThreadLocalUtil.get();
        String username = (String) userMap.get("username");
        User user = userService.getUserById(username);
        if (!Md5Util.getMD5String(oldPwd).equals(user.getPassword())) {
            return Result.error("原密码填写不正确");
        }
        if (!newPwd.equals(rePwd)) {
            return Result.error("两次填写的密码不一样");
        }
        userService.updatePwd(newPwd);
        ValueOperations<String, String> operations = stringRedisTemplate.opsForValue();
        operations.getOperations().delete(token);
        return Result.success();
    }


}
